American Petroleum Institute

Temperature Correction for the Volume of Light Hydrocarbons Tables 24E and 23E
 N TP-25

Annotation

The actual Standard represented by this report consists of the explicit Implementation Procedures. Sample tables and other examples created from a computerized version of these Implementation Procedures are presented within. However, these are for examples only and do not represent the Standard.

This Standard covers a 60°F relative density range of 0.3500 to 0.6880. The temperature range of this standard is -50.0 to 200.0°F. At all conditions, the pressure is assumed to be at saturation conditions (also known as bubble point or saturation vapor pressure).

The calculation method was developed from GP A RR-148 "Volume Correction Factors for Natural Gas Liquids Phase II"10. Supporting data can be found in GPARR-147 ''Density Measurements on Natural Gas Liquids"11. GPA RR-133 "Volume Correction Factors for Natural Gas Liquids - Phase I" 12 should no longer be used, as GPA RR-148 completely replaced it.

From the following procedure, CTLs can be calculated given a 60°F relative density and an observed temperature using the procedure for Table 24E in Section 5.1. Alternately, given a relative density at an observed temperature, the relative density at 60°F can be calculated using the procedure for Table 23E in Section 5.2. Please note that the procedure for Table 24E is shown before the procedure for Table 23E since the procedure for Table 23E makes use of the procedure for Table 24E and not the other way around

Автоматический перевод:

Температурное исправление для объема таблиц 24E и 23E летучих углеводородов